Driving-box wedge



J. KINDERVATER'.

DRlVlNG BOX WEDGE.

AP1 L1cAT1oN FILED 1111111.15. 1922'.

m1111111 June 27, 1922.

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DRIVING-BOX WEDGE.

Application filed March 16, 1922. Serial No. 544,107.

To @ZZ whomI t may concern.'

Be it known that I, JULIUs KINDERVATER, a citizen of the United States, and resident of the city, county, and State of New York, have invented a certainnew and useful Improvementk in Driving-Box lVeclges, of which improvement the following is a specification. f

The object of my invention is to provide an adjustable driving box wedge appliance, in the operation of which, wear of the driving box shall be automatically taken up and the locomotive frame member in which it is applied be elfectually protected from mar. To this end, my invention, generally stated, consists in the combination, with a frame pedestal and a drivingbox fitted therein, of a wearing shoe, detachably connected to a jaw of the pedestal, and an automatically adjustable wedge and a floating wedge, interposed between said wearing Vshoe and the driving box.

The improvement claimed is hereinafter fully set forth.

In driving box wedge appliances of the class to which my invention relates, it has heretofore been the universal practice, so far' as my knowledge ,and information extend, to cause the bearing of the wedge to be directly against a frame pedestal jaw, the objectionable result of which is that the latter wears in such manner and to such extent as to prevent the wedge from properly functioning. The operation of repairing the resulting damage to the locomotive frame is extremely expensive, and tends to a greater or less degree to weaken the frame structure. These objections are fully obviated by my invention, under which the wearing Ine1nbers being readily removable, they may be expeditiously detached, and replaced.

In the accompanying drawing: Figure 1 is a side view, in elevation, of a locomotive frame pedestal, showing, in vertical section, a portion of the drivingl box, and the members interposedbetween the same and one of the pedestal aws, and; Fig. 2, a horizontal section, on the line a a of Fig. 1.

In the practice of my invention, referring descriptively to the specific embodiment thereof which is herein exemplified, the inner inclined side of the jaw, 1, of the locomotive frame pedestal, 1, 2, in connection with which, and with a driving box, 3, my

invention is applied, is faced and protected 'b by a detachable wearing shoe, 4, which is Vouter sides of the jaw. The wearing shoe,

4, is additionally secured to the pedestal jaw by transverse bolts, 5, passing through the jaw and the lateral flanges, 4ta, of the shoe, and provided with nuts, 5a, which may be drawn to a tight bearing on one of said flanges.

An adjusting wedge 6, is fitted, and adapted to slide freely, in a channel or re' cess formed in the wearing shoe, 4, on the side thereof further from the pedestal jaw, 1, and an oppositely inclined floating wedge, 7, is interposed between the adjusting wedge and the driving box, 3. The adjusting wedge, 6, is automatically actuated, in the ordinary manner, by a spring, 8, bearing on a stirrup, 9, bolted to the pedestal tie, 10, and on a nut, 11, which is adjustable on a bolt, 12, the head of which engages the adjusting wedge. The adjusting wedge and the floating wedge, 7, are so proportioned that when the adjusting wedge is in its lowest position adjacent to the pedestal tie, l0, there will be no contact between the floating wedge and the side walls of the recess in the wearing shoe, 4t.

It will be seen that by the construction above described, the pedestal jaw is coinpletely relieved from wear and the expense of frame repairs consequently avoided, and that the detachment and attachment of the wear shoe can be so readily and promptly effected that renewal or repair thereof will not involve substantial time and cost.

I claim as my invention and desire to secure by Letters Patent 1. The combination of a frame pedestal; a driving box, fitted therein; an automatically operable adjusting wedge, interposed between said driving box and the jaw of the pedestal having an inclined face; and means, detachably connected to said jaw, for imparting all pressure imposed on the adjustingwedge to the jaw.

2. The combination of a frame pedestal;

a driving box, fitted -therein;-a wear shoe,

detachably connected to the jaw of the pedestal having an inclined face; and wedges, of relatively opposite inclination, interposed between the wear shoe and the driving 3. The combination of a frame pedestal;

` Wedge bearing on said Wearing slioe; and a bend estal havingr an inclined face; anadjusting Heating Wedge interposed between the ad- 'ustinff WedO'e and the driving boX. :I b C in The combination of a frame pedestal; a driving box, fitted therein; a Wear shoe, detachably connected to the jaw of the pedestal having an inclined face and provided with lateral flanges embracing said jaw; an

automatically operable adjusting Wedge, `litting` freely in a recess in the Wear shoe; and

'a floating Wedge, interposed between the adjiisting` Wedge and the driving box.

JULUS KNDERVTER. ll'itnesses J. SNOWDEN BELL, lV, R. VARNER. 

